HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 590

• Manufacturer Part Number: HD64F7050
• Description: 32-Bit RISC Microcomputer SuperH RISC engine Family/
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 18 ROM (128 kB Version)
18.11.2 Programmer Mode Operation
Table 18.10 shows how the different operating modes are set when using programmer mode, and
table 18.11 lists the commands used in programmer mode. Details of each mode are given below.
Table 18.10 Settings for Various Operating Modes In Programmer Mode
Mode
Read
Output disable
Command write
Chip disable
Notes: 1. Chip disable is not a standby state; internally, it is an operation state.
Rev. 5.00 Jan 06, 2006 page 570 of 818
REJ09B0273-0500
Memory Read Mode
Memory read mode supports byte reads.
Auto-Program Mode
Auto-program mode supports programming of 128 bytes at a time. Status polling is used to
confirm the end of auto-programming.
Auto-Erase Mode
Auto-erase mode supports automatic erasing of the entire flash memory. Status polling is used
to confirm the end of auto-programming.
Status Read Mode
Status polling is used for auto-programming and auto-erasing, and normal termination can be
confirmed by reading the D6 signal. In status read mode, error information is output if an error
occurs.
2. *Ain indicates that there is also address input in auto-program mode.
3. For command writes in auto-program and auto-erase modes, input a high level to the
FWE pin.
FWE
H or L
H or L
H or L
H or L
CE
CE
CE
CE
L
L
L
H
H
X
OE
OE
OE
OE
L
H
Pin Names
WE
WE
H
H
L
X
WE
WE
D0–D7
Data output
Hi-z
Data input
Hi-z
A0–A17
Ain
X
*Ain
X